Chemical Engineering MCQs

6108 MCQs  (Page 69 of 611)

Attempt Chemical Engineering Quiz
Methyl orange indicator turns_____________________?
A. Orange yellow in alkaline medium
B. Orange yellow in acidic medium
C. Colourless in acidic medium
D. Colourless in basic medium
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A compact estimate about the amount of materials handling between various work stations is obtained from the_____________________?
A. Gantt chart
B. Bin chart
C. String diagram
D. Travel chart
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Age hardening is connected with________________?
A. Babbitt metal
B. Gun metal
C. Stainless steel
D. Duralumin
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Electrostatic separation of minerals from each other is based on their differences in the following property ?
A. Densities
B. Magnetic permeabilities
C. Electrical conductivities
D. Hardness
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While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to ______________ × Tm (where, Tm Melting temperature) ?
A. 0.25
B. 0.45
C. 0.70
D. 0.95
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Which of the following properties of a solid is not dependent on crystal imperfection ?
A. Ductility
B. Semi-conductivity
C. Melting point
D. Yield stress
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The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the_______________?
A. Work hardening
B. Bauschinger effect
C. Creeping effect
D. Stress recovery effect
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Yield strength of a polycrystalline metal with an average grain size „d’, is proportional to ____________________?
A. D1/2
B. D-1/2
C. D
D. D-1
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The passage between the nozzle and the _______________________ is called ‘sprue’ in case of injection moulding?
A. Runner
B. Cylinder
C. Mold
D. None of these
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The condition of diffraction from a crystal is given by______________?
A. Nλ = 2d sin θ
B. Λ = d sin 2θ
C. Λ = 2d sin 2θ
D. Nλ = d sin θ
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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